EP4290059B1 - Katalysatorvorrichtung - Google Patents

Katalysatorvorrichtung

Info

Publication number
EP4290059B1
EP4290059B1 EP23170309.1A EP23170309A EP4290059B1 EP 4290059 B1 EP4290059 B1 EP 4290059B1 EP 23170309 A EP23170309 A EP 23170309A EP 4290059 B1 EP4290059 B1 EP 4290059B1
Authority
EP
European Patent Office
Prior art keywords
case
catalyst
end portion
turbine housing
discharging direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23170309.1A
Other languages
English (en)
French (fr)
Other versions
EP4290059A1 (de
EP4290059C0 (de
Inventor
Toshinori Oki
Tatsuo Iida
Takahiro Sadamitsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of EP4290059A1 publication Critical patent/EP4290059A1/de
Application granted granted Critical
Publication of EP4290059B1 publication Critical patent/EP4290059B1/de
Publication of EP4290059C0 publication Critical patent/EP4290059C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2882—Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features having thermal insulation
    • F01N13/141—Double-walled exhaust pipes or housings
    • F01N13/145—Double-walled exhaust pipes or housings with a gas other than air filling the space between both walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1861—Construction facilitating manufacture, assembly, or disassembly the assembly using parts formed by casting or moulding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion
    • F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • F01N3/2026—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means directly electrifying the catalyst substrate, i.e. heating the electrically conductive catalyst substrate by joule effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/16—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an electric heater, i.e. a resistance heater
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
    • F01N2260/08—Exhaust treating devices having provisions not otherwise provided for for preventing heat loss or temperature drop, using other means than layers of heat-insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2340/00—Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the exhaust apparatus; Spatial arrangements of exhaust apparatuses
    • F01N2340/06—Arrangement of the exhaust apparatus relative to the turbine of a turbocharger
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of exhaust gas passages, pipes or tubes
    • F01N2470/24—Concentric tubes or tubes being concentric to housing, e.g. telescopically assembled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/02—Gas passages between engine outlet and pump drive, e.g. reservoirs
    • F02B37/025—Multiple scrolls or multiple gas passages guiding the gas to the pump drive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the catalyst device disclosed in Japanese Laid-Open Patent Publication No. 2016-84776 includes a case with an end portion formed as an insulating portion.
  • a catalyst device is configured to be disposed in an exhaust passage of an internal combustion engine including a forced-induction device.
  • the catalyst device includes a catalyst configured to purify exhaust gas, a heating element configured to heat the catalyst by generating heat when energized, and a case that is a pipe accommodating the catalyst and the heating element.
  • a direction in which exhaust gas flows through the exhaust passage is defined as a gas discharging direction.
  • the case includes an end portion on an upstream side in the gas discharging direction.
  • the heating element includes an end on an upstream side in the gas discharging direction.
  • the end portion of the case is an insulating portion that insulates electricity and protrudes toward an upstream side of the end of the heating element in the gas discharging direction.
  • the catalyst device further includes an outer tube that is separated from the end portion of the case in a radial direction to cover the end portion.
  • the outer tube is formed by a turbine housing that houses a turbine wheel of the forced-induction device.
  • particulate matter collected on the end portion of the case moves to the inner circumferential surface of the outer tube due to thermophoresis. This prevents deposition of particulate matter in the insulating portion. Prevention of deposition of particulate matter in the insulating portion improves the insulation properties of the insulating portion.
  • the outer tube may be entirely formed by the turbine housing.
  • the end portion of the case may include an edge on an upstream side in the gas discharging direction.
  • a diameter of an outlet of the turbine wheel on a downstream side in the gas discharging direction may be defined as an outlet diameter.
  • a diameter of the edge of the end portion may be set to be larger than the outlet diameter.
  • a shortest distance between the edge and an inner circumferential surface of the turbine housing may be set to a distance greater than or equal to a shortest distance that allows insulation at a maximum voltage supplied to the heating element.
  • an internal combustion engine 90 includes a forced-induction device 100 that supercharges intake air flowing through an intake passage 71 using exhaust gas flowing through an exhaust passage 91.
  • the forced-induction device 100 includes a turbine housing 110, which houses a turbine wheel.
  • the catalyst device 10 is connected to the downstream side of the turbine housing 110.
  • the catalyst device 10 is an electrically heated catalyst device and includes a heating element that generates heat when energized.
  • the arrow in Fig. 1 represents a gas discharging direction, which is a flow direction of the exhaust gas discharged from the internal combustion engine.
  • the structure on the downstream side in the gas discharging direction may be symmetrical with the structure on the upstream side.
  • the structure on the downstream side may be a single-wall pipe structure with the case 20, which accommodates the catalyst support 31.
  • the catalyst support 31 has a columnar outer shape with its central axis agreeing with the axis C1.
  • the catalyst support 31 is a porous body.
  • One example of the catalyst support 31 has a honeycomb structure in which channels extending in the gas discharging direction are defined.
  • the mat 32 covers a surface that corresponds to the side surface of the column of the catalyst support 31.
  • the mat 32 is an insulating body having a low electric conductivity.
  • the mat 32 is made of, for example, an inorganic fiber having alumina as a major component. Since the catalyst support 31 is covered with the mat 32, no current flows through the case 20 when the catalyst support 31 is energized.
  • the accommodation portion 21 of the case 20 has electrode insertion holes 26, into which the electrodes 81 are inserted.
  • the electrodes 81 which are connected to the catalyst support 31, protrude outside the case 20, via the electrode insertion holes 26.
  • the electrode insertion holes 26 are closed by electrode holding portions 82.
  • the electrode holding portions 82 fix the electrodes 81 inserted in the electrode insertion holes 26.
  • the electrode holding portions 82 are insulating bodies having a low electric conductivity. Since the electrode holding portions 82 support the electrodes 81, current does not flow to the case 20.
  • the decreasing diameter portion 24 of the end portion 22 has the shape of pipe that is tapered such that the distance to the axis C1 decreases toward the upstream end in the gas discharging direction. That is, the inner diameter of an inner circumferential surface 22B of the decreasing diameter portion 24 decreases toward the upstream end in the gas discharging direction.
  • the connecting pipe 120 is made of metal such as stainless steel.
  • a downstream end 122 of the connecting pipe 120 which is located at the downstream end in the gas discharging direction, is joined to an outer circumferential surface 22A of the decreasing diameter portion 24.
  • An inner circumferential surface 120B of the connecting pipe 120 is separated in the radial direction from the end portion 22 so as to cover the decreasing diameter portion 24 of the end portion 22.
  • the connecting pipe 120 includes a flange 126 at an upstream end in the gas discharging direction.
  • the turbine housing 110 is formed by a casting made of a metal material such as cast iron or an aluminum alloy.
  • the turbine housing 110 includes a wheel accommodating portion 112, which accommodates a turbine wheel 130.
  • the turbine housing 110 includes a cylindrical gas discharge portion 118, through which the exhaust gas that has passed through the turbine wheel 130 flows.
  • the central axis of the gas discharge portion 118 agrees with the axis C1.
  • the inner diameter of the gas discharge portion 118 is constant in the direction in which the axis C1 extends.
  • the inner diameter of the gas discharge portion 118 is slightly larger than the outlet diameter Dt.
  • the turbine housing 110 includes the enlarged diameter portion 114.
  • the enlarged diameter portion 114 is formed on the downstream side in the gas discharging direction with respect to the opening 119 of the gas discharge portion 118.
  • the inner diameter of the enlarged diameter portion 114 is larger than the inner diameter of the gas discharge portion 118.
  • An inner circumferential surface 112B of the enlarged diameter portion 114 is spaced apart in the radial direction from the end portion 22 so as to cover the end portion 22.
  • the enlarged diameter portion 114 includes a flange 116 at a downstream end in the gas discharging direction.
  • the flange 116 of the enlarged diameter portion 114 and the flange 126 of the connecting pipe 120 are connected to each other, so that the downstream end of the turbine housing 110 in the gas discharging direction is fixed to the case 20.
  • the inner diameter D which is the diameter of the edge 25 of the end portion 22, is set to be larger than the outlet diameter Dt of the turbine wheel 130.
  • a shortest distance L between the edge 25 and the inner circumferential surface 112B of the turbine housing 110 is set to a distance greater than or equal to a shortest distance L ⁇ that allows insulation at a maximum voltage supplied to the catalyst support 31.
  • the positional relationship between the edge 25 and the inner circumferential surface 112B is determined such that the shortest distance L is equal to the shortest distance L ⁇ at which insulation is possible.
  • the outer tube 50 of the present embodiment is partially formed by the turbine housing 110 of the forced-induction device 100. Since the turbine housing 110 having such a structure has a large thermal capacity, the temperature rise of the turbine housing 110 is slow, for example, during cold start. This encourages the temperature of the outer tube 50 to be lower than the temperature of the end portion 22 of the case 20, which is exposed to exhaust gas. This improves the insulation properties of the insulating portion at the end portion 22 of the case 20.
  • the thermal capacity of the outer tube 50 is larger than that in a case in which part of the outer tube 50 is formed by the turbine housing 110. This further encourages the temperature of the outer tube 50 to be lower than the temperature of the end portion 22 of the case 20. This further improves the insulation properties of the insulating portion at the end portion 22 of the case 20.
  • the downstream end 117 may be joined to the outer peripheral surface of the accommodation portion 21 of the case 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Supercharger (AREA)

Claims (4)

  1. Katalysator-Turbolader-Kombination, umfassend:
    eine Katalysatorvorrichtung (10), die dazu ausgelegt ist, in einem Abgaskanal (91) eines Verbrennungsmotors (90) angeordnet zu werden; und
    eine Aufladevorrichtung (100) mit einem Turbinengehäuse (110), das ein Turbinenrad (130) aufnimmt,
    wobei die Katalysatorvorrichtung (10) Folgendes umfasst:
    einen Katalysator, der dazu ausgelegt ist, Abgas zu reinigen;
    ein Heizelement (31), das dazu ausgelegt ist, den Katalysator bei Stromzufuhr durch Wärmeentwicklung zu erhitzen; und
    ein Gehäuse (20) in Form eines Rohres, das den Katalysator und das Heizelement (31) aufnimmt, wobei
    eine Richtung, in der Abgas durch den Abgaskanal (91) strömt, als Gasausströmrichtung definiert ist,
    das Gehäuse (20) einen Endabschnitt (22) auf einer stromaufwärtigen Seite in der Gasausströmrichtung aufweist,
    das Heizelement (31) ein Ende (31A) auf einer stromaufwärtigen Seite in der Gasausströmrichtung aufweist,
    der Endabschnitt (22) des Gehäuses (20) in der Gasausströmrichtung stromaufwärts über das Ende (31A) des Heizelements (31) hinausragt und einen elektrisch isolierenden Isolierabschnitt bildet,
    eine Oberfläche des Endabschnitts (22) des Gehäuses (20) mit einem Isoliermaterial bedeckt ist, sodass der Endabschnitt (22) des Gehäuses (20) einen Isolierabschnitt darstellt,
    die Katalysatorvorrichtung (10) ferner ein Außenrohr (50) umfasst, das in einem Radialabstand vom Endabschnitt (22) des Gehäuses (20) angeordnet ist, um den Endabschnitt (22) zu umschließen,
    das Außenrohr (50) durch das Turbinengehäuse (110) gebildet ist, und
    das Turbinengehäuse (110) einen zylindrischen Gasauslassbereich (118) aufweist, der koaxial mit der Katalysatorvorrichtung (10) angeordnet ist.
  2. Katalysator-Turbolader-Kombination nach Anspruch 1, wobei das Außenrohr (50) vollständig durch das Turbinengehäuse (110) gebildet ist.
  3. Katalysator-Turbolader-Kombination nach Anspruch 1, wobei
    der Endabschnitt (22) des Gehäuses (20) eine Kante (25) auf einer stromaufwärtigen Seite in der Gasausströmrichtung aufweist,
    ein Durchmesser einer Auslassöffnung des Turbinenrads (130) auf einer stromabwärtigen Seite in der Gasausströmrichtung als Auslassdurchmesser (Dt) definiert ist,
    ein Durchmesser (D) der Kante (25) des Endabschnitts (22) größer als der Auslassdurchmesser (Dt) eingestellt ist, und
    ein kürzester Abstand (L) zwischen der Kante (25) und einer Innenumfangsfläche (112B) des Turbinengehäuses (110) auf einen Abstand eingestellt ist, der größer oder gleich einem kürzesten Abstand ist, der bei einer maximalen an das Heizelement (31) angelegten Spannung eine Isolierung ermöglicht.
  4. Katalysator-Turbolader-Kombination nach Anspruch 1, wobei das Turbinengehäuse (110) durch Gießen hergestellt ist.
EP23170309.1A 2022-06-09 2023-04-27 Katalysatorvorrichtung Active EP4290059B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2022093668A JP7666409B2 (ja) 2022-06-09 2022-06-09 触媒装置

Publications (3)

Publication Number Publication Date
EP4290059A1 EP4290059A1 (de) 2023-12-13
EP4290059B1 true EP4290059B1 (de) 2025-08-13
EP4290059C0 EP4290059C0 (de) 2025-08-13

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Family Applications (1)

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EP23170309.1A Active EP4290059B1 (de) 2022-06-09 2023-04-27 Katalysatorvorrichtung

Country Status (4)

Country Link
US (1) US11965448B2 (de)
EP (1) EP4290059B1 (de)
JP (1) JP7666409B2 (de)
CN (1) CN117211927A (de)

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JP2021071089A (ja) * 2019-10-31 2021-05-06 マツダ株式会社 エンジンの排気システム
DE102020105330A1 (de) * 2020-02-28 2021-09-02 Volkswagen Aktiengesellschaft Abgasnachbehandlungssystem sowie Verfahren zur Abgasnachbehandlung eines Verbrennungsmotors
US11499471B2 (en) * 2021-01-25 2022-11-15 Ford Global Technologies, Llc Method and systems for reducing heat loss to a turbocharger during cold engine starting

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CN117211927A (zh) 2023-12-12
US11965448B2 (en) 2024-04-23
EP4290059A1 (de) 2023-12-13
JP7666409B2 (ja) 2025-04-22
EP4290059C0 (de) 2025-08-13

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